main.cpp

this a good book.

#include<iostream.h>
class A
{
	int a;
public:
	// * * 1 * *
	{
		return a=x;
	}
	void showa() 
	{
		cout << a << endl;
	}
};

	class B
	{
		int b;
	public:
		void setb(int x)
		{
			b=x;
		}
		void showb()
		{
			cout << b << endl;
		}
	};
   // * * 2 * *
	{
	private:
		// * * 3 * *
	public:
		void setc(int x,int y,int z)
		{
			c=z;
			// * * 4 * *
			
			setb(y);
		}
		void showc()
		{
			cout << c << endl;
		}
	};

	void main()
	{
		C c;
		c.seta(5);
		c.showa();
		c.setc(5,7,4);
		c.showc();
	}